Document K4RxygBBNpbw3B9XQ6rrdXYX

Vista Chomtcoi Company 15990 N. Barker's landing Rd. Post Office Box 19029 Houston,Tx 77224 Phone (713) 531-3200 if r*. 4r. March 2, 1987 Mr. John Kasper Toxicologist Nalco Chemical Company One Nalco Center Naperville, IL 60566-1024 VISTA Dear John: Attached is a letter I sent to you in November requesting information regarding your MSDS for Tri-Act 1801 Inhibitor. To my knowledge we still have not received a reply. I would appreciate a reply as soon as possible Sincerely, I \ VV- Thomas G. Grumbles, C.I.H. Environmental Quality Manager t- ajo .1 Attachment VVV 000009181 Vtito Chemical Company 15990 N. Barker's Landing fid. Post Office Box19029 Houston,Texas 77224 Phone (713) 531-3200 November 12, 1986 Mr. John J. Kasper Toxicologist Nalco Chemical Company One Nalco Center Naperville, TL 60566-1024 VIS1A Dear Johns Several weeks ago I discussed the exposure limit information contained on the MSDS for Tri-Act. 1801 Inhibitor with a member of your staff, I still need an answer to the following. The hazardous ingredients section lists two proprietary chemicals as product constituents. However, In the Regulatory Information . --ssection there appears to - be exposure limits listed for three proprietary chemicals. . . Would you ~"please provide information ;~- regarding the third chemical or review the MSDS to determine if there Is a typographical error. I would appreciate a response as soon as possible. Sincerely, Thomas G. Grumbles, C.I.H. Environmental Quality Manager ajo/9 cc Keith Fogg VVV 000009182